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<h2><span class="refentrytitle">Struct template minimal_expr</span></h2>
<p>boost::yap::minimal_expr</p>
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<h2 class="refsynopsisdiv-title">Synopsis</h2>
<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../yap/reference.html#header.boost.yap.algorithm_fwd_hpp" title="Header &lt;boost/yap/algorithm_fwd.hpp&gt;">boost/yap/algorithm_fwd.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="identifier">expr_kind</span> Kind<span class="special">,</span> <span class="keyword">typename</span> Tuple<span class="special">&gt;</span> 
<span class="keyword">struct</span> <a class="link" href="minimal_expr.html" title="Struct template minimal_expr">minimal_expr</a> <span class="special">{</span>

  <span class="comment">// public data members</span>
  <span class="keyword">static</span> <span class="identifier">expr_kind</span> <span class="keyword">const</span> <span class="identifier">kind</span><span class="special">;</span>
  <span class="identifier">Tuple</span> <span class="identifier">elements</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
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<a name="id-1.3.46.8.2.3.6.4"></a><h2>Description</h2>
<p>Used as the expression template returned by some operations inside YAP when YAP does not have an expression template it was told to use. For instance, if transform() creates a new expression by transforming an existing expression's elements, it will attempt to create the new expression using the existing one's expression template. If no such template exists because the existing expression was not made from an expression template, <a class="link" href="minimal_expr.html" title="Struct template minimal_expr">minimal_expr</a> is used. </p>
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<div class="copyright-footer">Copyright © 2018 T. Zachary Laine<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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